History of operation of lung cancer; PD after 3-4 cycles chemotherapy; Patients with sever infection; Patients with uncontrollable diabetes; Patients in pregnancy or lactation; Patients who are currently receiving or have received other clinical trail for radioprotection within the prior six months are excluded; Patient with history of malignancy other than skin cancer or Carcinoma in-situ within 2 years; History of cardiovascular diseases that might include one of the following: myocardial infraction, angina, coronary angioplasty, congestive heart failure, stroke, or coronary bypass surgery in the last 6 months; Concomitant treatment with other anticancer drugs;